"Sumner County (standard abbreviation: SU) is a county located in the U.S. state of Kansas. As of the 2010 census, the population was 24,132. Its county seat is Wellington.Sumner County is part of the Wichita, KS Metropolitan Statistical Area."@en . . "1870-12-20Z"^^ . "7.76996e+06"^^ . . "3.06137e+09"^^ . "23591"^^ . . . "2013Z"^^ . . . . "3.06914e+09"^^ . "7.72204"^^ . "Sumner County"@en . "0.3"^^ .